DevOps Maturity Model
There are different levels of maturity and your final goal will depend on your company. Operations departments are very different in a bank as opposed to Facebook.
The 4 main stages to DevOps Maturity are:

Early - Manual traditional approach to software delivery. Little or no automation.

Scripted - Moving toward more automation. Some scripting is used to assist the tracked recorded deployment process thru DTAP environments.

Automation - Reusable common automation approach to releasing applications. Workflow/orchestration using the automation capabilities used over all the DTAP environments.